Correct Answer: C

Rationale: Assessing for signs of bleeding is the priority when caring for a client with deep vein thrombosis (DVT) receiving heparin therapy. Heparin therapy increases the risk of bleeding complications, so monitoring for signs of bleeding is crucial to ensure patient safety and timely intervention if needed.

Correct Answer: B

Rationale: Clients with an alteration in the CYP2C19 gene do not metabolize warfarin (Coumadin) well, leading to higher blood levels and more side effects. As this client is a poor candidate for warfarin therapy, the prescriber will most likely recommend the implantation of an inferior vena cava (IVC) filter. This device helps prevent blood clots from reaching the lungs, reducing the risk of pulmonary embolism.

Correct Answer: C

Rationale: In COPD, a prolonged expiratory phase is a typical finding caused by airway obstruction and air trapping. This results in difficulty expelling air from the lungs, leading to the characteristic prolonged exhalation in individuals with COPD.

Correct Answer: C

Rationale: Cystic fibrosis is an autosomal recessive disorder in which both gene alleles must be mutated for the disorder to be expressed. The nurse should encourage both the client & partner to be tested for the abnormal gene. The other statements are not true.

Correct Answer: C

Rationale: A potassium level of 6.5 mEq/L is critically high and can lead to life-threatening cardiac dysrhythmias, requiring immediate intervention. Hyperkalemia is a common complication in clients with ESRD due to the kidneys' inability to excrete potassium effectively. High potassium levels can result in serious cardiac consequences such as arrhythmias, cardiac arrest, and death. Prompt action is necessary to prevent these severe complications.